Wideband Delphi
📙 CTAL-TM
Official ISTQB Definition
An expert-based test estimation technique where a group of experts provides estimates, discusses them, and iterates until consensus is reached. Includes team discussion unlike traditional Delphi.
3 Ways to Think About It
The Quick Take
Expert-based estimation where specialists discuss and converge on estimates.
Look Closer
An iterative estimation technique combining expert judgment with discussion.
The Bottom Line
Group estimation where experts share rationale until consensus emerges.
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